Courtesy of his son, retired SA Robert Core, his father SA John W. Core is shown here in the late 1930's at firearms practice with the Colt Monitor. This particular photo has been seen in magazines around the country.

Courtesy of his son, retired SA Robert Core, his father SA John W. Core is shown here in the late 1930's at firearms practice with the Colt Monitor. This particular photo has been seen in magazines around the country.

Carry cases for the Monitor were approved in mid 1934 and delivered in September of the same year. (click to enlarge)

Our own review of FBI files pertaining to weapons acquisitions reveals sporadic information on the Colt Monitor. From documents found, it is clear that Colt salesmen "pitched" the Bureau on the Monitor in June, 1933. However, the files show that in all liklihood, purchase of the Monitor did not occur until 1934.  

We've set forth a few documents here that may be of interest to readers:

The June, 1934 Monitor distribution list - it is believed this is the first distribution of the Monitor Bureau wide.

June, 1934 Monitor training memo - it is believed that this is the initial stages of training. 

As of 2015, we're attempting to locate additional documentation regarding the Bureau's use of the Colt Monitor.